Louver type window



.3 Sheets-Sheet 1 Filed July 29, 1948 INVENTOR. Berna/r4220 8d 7750s ATTCI RN EYE Feb. 5, 1952 B. SANTOS 1 LOUVER TYPE wmnow 3 Sheets-Sheet 2 Filed July 29, 1948 IN VEN TOR. Be 777a rdz w amos ATTD R N EYS Feb. 5, 1952 B. SANTOS LOUVER TYPE WINDOW 3 Sheets-Sheet 5 Filed July 29, 1948 INVENTOR. I 777d Ta Z "720 52171705 ATI'D RN EYS Patented Feb. 5, 1952 UNITED STATES PATENT OFFICE LOUVER TYPE WINDOW Bernardino Santos, Rio Piedras, P. R. Application July 29, 1948, Serial No. 41,2 6?v m a This invention relates to window structures, and more particularly to louvre type windows capable of being opened and closed to provide ventilation, visibility and light.

The primary object of the invention is to provide a louvre type window having a plurality of panels movable about their longitudinal axis to facilitate easy and rapid opening and closing.

Another object is to provide a louvre type window that does not require any attention in ordinary weather.

Another object is to provide a louvre type window in which the pivoted panel members can be conveniently opened, and locked in a closed position.

Another object is to provide a louvre type window having louvre panels designed such that rain will be excluded when partially opened, and to direct incoming air upwardly and outgoing air downwardly.

Another object resides in the provision of an operator for the louvre panels of the window which is provided with mutuallyengaging pin and slot locking means to retain the louvre panels in a closed position. 7

Another object is to provide a louvre type window in which the louvre panels are provided with flanged edge portions which are adapted to interlockingly overlap and form a sealed joint adjacent the meeting edges of adjacent panels.

A further object is to provide a louvre type window that is so simple and rugged in design that it can be manufactured with a minimum of ease and expense.

Other objects and advantages of the invention will become apparent during the course of the following description of the accompanying drawings wherein:

Figure 1 is a front elevational view of the louvre type window showing the panel members in a closed position.

Figure 2 is a vertical cross-sectional view taken on line 2-2 of Figure l, and looking in the direction of the arrows to illustrate various details of construction and showing the .manner in which the edges of the louvre panels are overlapped.

Figure 3 is a rear elevational view of the louvre type window showing the louvre panels in a closed position.

Figure 4 is a horizontal cross sectional view of the window showing the louvre panels in a closed position with the operator in its locked position.

Figure 5 is a horizontal cross sectional view 5 Claims. (01. 20-62) similar to Figure 4, but showing the louvre panels in. an open position.

Figure 6 is a vertical cross sectional view taken on line 66 of Figure 4 further showing the operator in a latched position. I Figure '7 is a vertical cross sectional view taken on line 1-1 of Figure 4 showing the operator bar, and the mutually engaging pin and L-shaped lockin slots for holding the operator and louvre panels in a closed position.

Figure 8 is a vertical cross sectional view taken on. line .-88 of Figure 4 similar to Figure'l, and

showing the operator bar in a position of release to permit the operator bar to move relative to the window frame, and. I Figure 9 is a vertical cross sectional view similar to Figure 2, but showing the louvre panels in an open position.

In the drawings andmore in detail, there is shown for convenience of illustration a window frame structuregenerally designated 10 for being received in a window opening A of a building construction indicated in dotted lines Figures 2 and 4 through 9, The window frame comprises a pair of vertical side frame members ll connected at the top and bottom by horizontal frame members [2 and I3 respectively. The side, top and bottom frame members ll, l2 and [3 are provided with integrated trim flanges M which are adapted to overlap the edge of the window opening and enhance the appearance of the window structure. The lower frame member I3 is of asectional. shape to provide an inclined sill portion to direct water away from the window sill, and intermediate said inclined portion there is formed a recess [5 for receiving the lower flanged edge of, the lowermost louvre panel in a manner presently to be described. The side andtop frame rails or members H and I2 are provided with portions of sectional shape to provide ofiset portions l6 and I! respectively to form a-recess for receiving the louvre type window structure. v i

The louvre type window structure includes a pair of vertical side rails [8 of channel section connected at their upper ends in spaced relation by a top rail l9 of angle section. The side rails 18 are seatedin the recess formed by the ofiset portion is of the side frame members H, while the upper rail I9 is seated in the recess formed bythe offset portion ll of the top frame member l2. Suitable fastening elements such as bolts 20 and nuts 2| are provided for securing the vertical rails J8 to the side frame members Il'ol' thewindowframefill, and likewise the top rail l3 can be fastened to the top frame member l2 by similar fastening elements.

Pivotally mounted between the channel rails I8 is a plurality of louvres 22, which may be formed of metal or, if desired, transparent material. Each louvre is provided adjacent its ends with a pivot bracket 23 secured by screws or the like as at 24 along themedian line or longitudinal axis 'of'thelonvre. Carried by e'ach pivot bracket-is a pivot-pin which is' adapted toiextend into one of the flanges 26 of the channel rails l8 and be supported in suitable bearing openings therein. If the louvres 22 are formed of metal, they are bent along their longitudinal edges in opposite directions to form'over-lapping flanges 21 with adjacent flanged edges. In other words, when the louvres 22 are closed- (Figure-2), the longitudinal edges carrying the oppositely directed flanges 2T overlap and form an effective weatherseal. .ILthe louvres 22 are formed of transparent panels, rectangularframes may be provided for.supporting the panels and the longitudinaL edges .ofL-the; frames may be. bent in. opposite directions similar to theflanges 21. Thus, itwill heseenthatltheilouvres may swing about their horizontal .axes between the channel rails I8.

.Irrorder. to rock the louvres in unison, an operating bar generally designated.28 is arranged at each sideof the .window. 3 Since both operating bars 28 .are -identical in construction, a.descriptionof onewill siiflicef'forboth As'best shown in Figure 5, theoperating bar28 is'formed'of extruded aluminum or other liizhtmetal alloy, and consists. of.a .base. portion" 28' having. a pair of spaced .apart integratedflanges 38 .and3l for slidably receiving a lockingbar132 therebetween. In addition. tothe spaced flangesf38- and 3|, the inner. edge is provided with a flange 33, the edge of which is cutaway-taprovide a series of cut awaystepped portions 34 of a shape to conform and receivethe end portions of the louvres when the same are in. a. closed position '(Figure'z).

..It is tobenotedhthat the.flange30 of the operating bar "projects .a slight distance beyondthe flange 3|..and said flange 38. is provided with a-series of longitudinally. spaced. apart hearing openings (not. shown) for. receiving pins 35 afllxed to .the. corners. of the louvres to project from corresponding.endedgesthereof. Thus, it will .beseen'.thatthe-louvres are pivotally connected bytheoperatingbar. 28 to swing in unison about their. longitudinal horizontal pivot axis whenthe. operating ..har.. 28.. is .moved to and fro.

:The sliding latch bar32 is mounted for sliding movementbetween the flanges. and 3| and is providedwith-a series of longitudinally spaced slots 36 throughwhich the .pinsJ35 alsoproject. It will .bexseen, that thesliding-latchbar 32 is capable: of being: moved .in a longitudinal direction. relativeto thesoperating bar 28 during all positions of movement of said bar.

Also formed in the sliding latchbar 32 and arranged one between each of the longitudinal slots 36 .is .a series of longitudinally spaced Lr-shapedslots 38,;havingentrance portions 39 extending toward... one of .Ithe longitudinal edges of-ithe slidinglatchbar. The L.,-shaped slots 38 aresspaced-equal distancescorresponding to the spacing of-. the louvre pivotpins 25 so that when said louvres are swung .to .a closed position (Figure 2) the. projecting ends-of .the pivot pins 85 -twill=be reeeivedin .theentrance slots 39 .l-Figure 8) ,'.and: then bymovingthe sliding latch bar 32 upwardly, the pivot pins will be received in the slots 38. Hence, the sliding latch bar as well as the operating bar will be locked to the projecting ends of the pivot pins 25 and the louvres will be held against rocking movement about their horizontal pivot axis.

An operating lever 40 of U-shaped section has one end extending between the flanges of each channel rail and is pivotally mounted therebetweerrby meansof a pivotpin 4|. 1 The sides 42 of the operating'lever are spaced as'shown in Figures 4 and 5 to straddle the flanges 30 and 3|,

was well as the sliding latch bar 32 and a pivot pin 44 is passed through suitable bearing openings in-the flanges 38 and 3| of the operating bar 28, and. through suitable openings in the sides of the operating lever 48. The sliding latch bar has its .lower endcut' away to slide freely relative to the pivot pin 44. An operating handle 45 is formed integral with one side of each operating lever 40 and said handle extension. The lower portion of the-operatingbar' 28 iscut away slightlyto reduce the widthof the base portion 29 and allow free swinging to and fro-movement about the axis of the pivot pin 44.

An operatingcrank 41 has its shaft 48 mounted for oscillatory movement in a suitable bearing opening in the flange-38 of the operating bar 28. The shaft portion 48 passes through a slot 49 in the sliding latch bar 32 as shown clearly in Figures 6 to 9 inclusive. The slot 49 extends at right angles at its upper end to provide a horizontal slot 50. A projection 5| is formed integral with the crank 41 and projects into the horizontal slot 58 in the sliding latch bar 32. Hence, when the crank 41 is moved upward and downward by the operating handle 52, the projection 5i swings about an are as indicated by the dotted lines in Figures '7 to 9 and moves to and fro in the horizontal portion 50 of the slot 49 to raise and lower said sliding latch bar.

In operation, let it be assumed that the pivoted louvres are in their closed and latched position as shown in Figure 2, also that the sliding latch bar 32 is in its raised position (Figure 6) with the pivot pins 25 of the louvres located in'the lower portions of the L-shaped' slots 38. Now, should it bedesired to'open the window, the handle 52 is grasped and swung downwardly from the position shown inFigures 6 and '7 to that shown in Figure 8. This motion causes the sliding latch bar 32 to be lowered a corresponding distance so that the pivot pins'25 will register with the entrance portions 39 of the L-shaped slots 38. With the sliding latch bar in its lowered position, the operating lever handle 45 is similarly grasped and moved downwardly from the position shown in'Figure 6 to that shown in Figure 9. Thus, the operating bar 28 is moved downwardly and outwardly so that the louvres 22 will be rocked about'their longitudinal horizontal axis to the proper angle.

When it is desired to close the window the above operations are'reversed. First, the operating lever 45 is moved upwardly which causes an upward and inward movement of the operating bar 28. As this occurs, the louvres 22 are rocked in a reverse direction and the operating bar 28 approaches the channel rails I8. As the operating bar approaches the channel rails l8, the entrance portions of the L-shaped slots are presented to the pivot pins 25 whereby a final movement of theoperating lever will cause the pivot pins to be fully seated within the entrance portion of. the L-shaped slots. The final locking of the window is accomplished by moving the 1. In a louvre type window, a frame adapted to be mounted in a window opening, a plurality of slats arranged in spaced relation pivotally mounted in said frame, an operating bar normal to the slats and pivotally connected to the end corners thereof, said operating bar being of channel section and formed of extruded metal to provide a pair of spaced ribs, a locking bar slidably. mounted between the ribs, a flange on the inner edge of said operating bar, a plurality of stepped portions in said flange that are adapted to receive the end portions of the slats when in closed position and a plurality of L-shaped slots in said locking bar that are adaptedito interlockingly engage the pivot pins oi the slats and independent means for controlling the'operating bar and locking bar.

2. In a louvre type window, a frame adapted to be mounted in a window opening, a plurality of slats pivotally mounted in said frame and arranged in spaced apart relation, an operating bar pivotally connecting each of the slats for pivotal movement about their axis in unison, said operating bar being formed of extruded metal to provide a pair of spaced longitudinal guide ribs, a locking bar slidably mounted between the spaced ribs, a flange on the inner edge of said operating bar, a plurality of 'stepped portions in said flange that are adapted to receive the end portions of the slats when in closed position and a plurality of L-shaped slots in said locking bar that are adapted to interlockingly engage the pivot pins of the slats, an operating lever for said operating bar and a control crank for said sliding locking bar.

3. In a louvre type window, a frame adapte to be mounted in a window opening, a plurality of slats pivotally mounted in said frame and arranged in spaced apart relation, an operating bar pivotally connecting each of the slats for i pivotal movement about their axis in unison, said locking bar, said sliding locking bar having a series of slots adapted to interlockingly engage the pivots of said slats.

4. In a louvre type window, a rectangular window frame adapted to be mounted in a window opening, a pair of channel bars arranged one at each side of the window and seated in the window frame, a plurality of slats mounted between the channel bars and arranged in spaced relation, pivot pins carried by said slats projecting into said channel bar, an operating bar common to all of said slats, pivoted connections between the slats and operating bar, said operating bar being formed of extruded metal to provide a pair of spaced longitudinal ribs, a locking bar slidably mounted between said ribs, said locking bar being provided with a plurality of L-shaped slots adapted to interlockingly engage the pivot pins of said slats, an operating lever for said operating bar pivotally connected to a channel bar and to the lower end of the operating bar and an operating crank for said locking bar carried by said operating bar.

5. In a louvre type window, a rectangular window frame adapted to be mounted in a window opening, a pair of channel bars arranged one at each side of the window and seated in the window frame, a plurality of slats mounted between the channel bars and arranged in spaced relation, pivot pins carried by said slats projecting into said channelbar, an operating bar common to all of said slats, pivoted connections between the slats and operating bar, said operating bar being formed of extruded metal to provide a pair of spaced longitudinal ribs, a locking bar slidably mounted between said ribs, said locking bar being provided with a plurality of L-shaped slots adapted to interlockingly engage the pivot pins of said slats, an operating lever for said operating bar pivotally connected to a channel bar and to the lower end of the operating bar, and an operating crank for said looking bar carried by said operating bar, said slats being provided with reversely bent longitudinal edges adapted to overlappingly engage the edges of adjacent slats.

BERNARDINO SANTOS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 147,090 Baxter Feb. 3, 1874 1,551,753 Lane Sept. 1, 1925 2,329,868 Wood Sept. 21, 1943 2,490,438 Huil' Dec. 6, 1949 

